Liquid-circulating system



May 11 ,1926. 1,584,002

L. AEBY El' AL LIQUID C1RGULATING SYSTEM Filed Oct. 20.' 1922 ...Jvtz/vfa/a, www firm/457mm.

Patented May' ll, 192g.

teuren stares tartar arrasa LOUIS AEBY AND HENRY KOCOUREK, 0F CHCAG, LLINOIS; SAID ISDCOUREK AS- SIGNOR TO SAID .A EBY.

LIQUID-CIRCULATING SYSTEM.

Application filed October 20, 1922.

The purpose of this invention is to provide an improv-ed construction for utilizing the cooling liquid of the engine-cooling circulatory system of a motor vehicle for heating the cab of the vehicle. lt consists in the elements and iteaturgs ot construction shown and described as indicated in the claims.

In the drawings Figure 1 is a partly sectional view `of the nature of a side elevation of a portion of the cab of the motor car and engine equipped with this invention.

Figure 2 is a detail section as at line 2-2 on Figure l axial with respect to the passages of the circulatory system and the junction of the two circuits thereof, one oat which contains the radiator and the other of which contains the heater, a valve device at said junction being shown in closed position adapted for opening by a predetermined pressure.

Figure 3 is a viewsimilar to Figure 2, showing the valve device in open position.

Figure l is a similar section at the junction of the two circuits between the pump and the radiator.

Figure 5 is a section axial with respect to the passages of a valved fitting at the junction of the two circuits between the radiator and the pump intake.

ln the drawings the engine is represented in conventional form at 1, the radiator at 2. A portion of the iioor of the cab is shown at 3. The water circulating pump lor positive circulation of the cooling water oft the engine jacket is shown at l in conventional relation to the engine and the radiator, and connected to the jacket by the pipe, 11. 5 represents conventionally the heater in the cab, supplied by an inleading pipe, 6, which lea-ds ed as a branch from the customary liexible pipe coupling Vshown at 7 which extends from the engine jacket to the radiator, said heater being connected by an outleading pipe, 9, to the intake pipe, 10, yof the pump, 4f, said connection being made between the discharge trom the radiator and the pump by a T-litting, 25, and elbow, 26, hereinafter more particularly mentioned. The connection of the heater iii-leading pipe, first mentioned, to the pipe, 7, is made by means of a T-iitting, 12, interposed in said pipe, having the cross inember, 12a, of lthe T, which constitutes the serial no. 595,722.

direct feed from the 'engine into the radiator itted with a valve device which comprises a sliding valve, 18, which is a semicylindrical element, seating in the lower half oiE the T and having a spring arm, 14, extending up across the T and bearingon the upper sid-e `for holding the lower side seated for sliding longitudinally, said valve element, 13, Vhaving an aperture, 15, which at one position within the range of the sliding movement of said element registers with the opening of the cross member, 12, into the stem of the l', which is connected by the pipe, 6, to the heater. The slide valve element 13, has a rack, 16, engaged with a gear segment, 17, rigid with a valve member, 18, mounted on a transversely-extendsd pivot stem, 19, journaled in the cross of the T, and extending out through one side thereof for carrying an operating lever handle, 20. The rack, 16, extends across the apeilture, 15, of the se1ni-cylindrical valve inember, 1 3, but without materially `obstructing the aperture, as will be understood from Figure 4; and the rack, 16, and the gear segment teeth are related respectively to the slide valve member, 13, and transverse valve member, 18, and said two valve members are related so that at the `open position of the slide valve member,-that is, at the position at which the aperture, 15, registers with the passage to the stem of the pinion, he valve member, 18, is at directly transverse crclosing position in the passage at the cross of the T. Said valve member, 18, has 1 apertures, 18a, for passageof the water through said valve, and is rendered effective as a closing device by means of the supplemental valve member, 2l, mounted on a stem, 22, which projects axially from the member, 18, said supplemental valve member having its circumference seating upon the member, 18, outside the ports, 18a, and being held normally in said seating position by a spring, 18C, coiled on the stem, 22, and checked by a cross-pin, 18d, therethrough, thereby operating as -a check valve `or spring seatedfvalve for closing the ports, 18a, and making the valve member, 18, effective for cle-sing the passage through the cross member, 12, against flow from the radiator toward the pump and for checking {iow in the opposite direction except upon pressure in that direction adequate to overcome the spring, 18, and torce ico 'veter [fer [the heater, and ft is mplmnt the check vielveimeinber, 21,; `from seat upon the m'i'n valve member, 18.

The return pipe, 9, from the heater,""5,"`to the pump, 4is conneeted to theredietor circuit by a, T-itting, 25, interposedin the pipe connection from the loottom of the radiator to the intake of the pump, the return pipe, 9, being conneetedwto seidv easing by en elbow, 26, which at its CfnneCtii'vitli the stezm2h8, hes a spring-seetedvelve, 30, 9 )leningegztinst tssp'riigSLji tothe dross o the heater; 'eh21 that Ithe eep'reee er' 'these @we systeme in' rlep oveif e, prtiion fte '.beth,.ee1p11emg the' wetter eekeeflthe eine the ehefebr Lef .the 'temere eine the pipe, 11, which eennefe the pump' te Ythe It winne und'eie'eee'd,thee-thejeelve *djevi'oe interposed between the "disehtifrg'e from usted Ato `the position f slioivn' Figure 2, ,has its vsprivriggyvpressed ohe'eltfvalve positioned for permitting ,the oireulzite'd the ,ee-meto @Seite .the met@ @ely when :the ,pressue iS. Sifij'nt ,te 215811) Seid Preis pressed valve afginstwthe uesistenoe of its at eertain portion of the yvter ,Willp'ss the slide valve member, 113, which di? gthlt posi- Etion is open intov the, pip/eet?, end;thencel xto A9, :ind ,the spring-seated ylve, 30, to the in- ,that it pviss to thevrzidigitor for'heing'ooeled,

,the fliandle. 20, Serves 110.. Maik, the Yeller@ member, 18, ervllid .to fliepeston. Shown in Fleur@ '3,.0pe111ne'the paesage, thlueh. the

cross of the TY from the engine jaelet to k(the ,topof Ythe reditor; end et the `sinne time `elosinc1V the portletiding into 'the stem ofthe fan@ to the pipe, 6, for supplying the i :use Cheek, opening onlyk t'ov'rdkthe pump surefes,isvneeessery to opeiintlie'cli' heater.

1e e111 be eeeereeeeeiheeeeeen# ee'jeeefmntf the reli ,dence between ttiiaf and1 the radietoiguthe vulve devioeO, he-

ttveen the heater and the raiditor operates ind only upon su'bstziiitigirlly the seine l;V vulve,

for' pssge of the iva'ter through the its v '.iL l f It may sometimes he desirzible to eut o' theeiroulftin from the livj'eiter While retaining the'seated velve, 21, in operative position asshown in Figure 2, Opening only upon a 'predetermined pressures ,end ,fer #hat P111*- poserjthereis provided in the pipe, 6, shutoff valve, 35, Which may be closed more or 4`less'oi' 'np'l'etely, according to Whether it is desirable to shut off or merely cheek the floi'v' o1' utei" to 'the heater.

7e elziimz-` u l e 1.111 @Weiter loirultry systinioinpris /i'ngtivo interlippi'ng Circuits liiving" oonim'mifcftiion 'ffor pressure in one direction through the interlapping `region; af velve ld'evine eitua'ted zrt the Apoint of 'divefrgeiie 'of siidfv'oireui'ts `fitter ytheir interlupping eurse, Aeom'prising 'e yieldingly seted "vulve 4hstrueting the entrance to one oourse,fdi`1'dn positively seated valve 'zidjfustblejat vvill for controlling en'trziree "tof the btlier tours@ opergziting oonn'eleton's;'v h'etltven 'the tivo v'ilvs 'for Setting the yieldinglyf's'eated vlve ps'- itively at'open position yvlien'lie positively y'opereted 'valve ,is at Closed* position -znd the yieldin'gly/s'elatd 'vaflve at' yieldingly sented 'position wheny fthe positively "'-opeited vxlve is zwepen ebenen.

hinitionwvith ap'ssage hving a branch, a

valve device at the junction of the branch with the main passage, comprising a slide valve in the main passage for closing the communication of the branch With said main passage; a `pivoted valve in the main passage i101' closing` the latter at transverse position of said valve therein; means connecting the slide valve and the piv-oted valve :tor closing the former by the opening movement oi the latter.

6. In a liquid circulating system, in combination With a passage having a branch, a valve device at the junction of the branch with the main passage, comprising a slide 'l valve in the main vpassage for closing the communication olf the branch with said main passage; a pivoted valve in the mam passage for closing the latter at transverse positi-on of said valve therein; a rack on the slide valve and a gear member on the pivoted valve intermeshing for moving the slide valve to closed position by the movement of the pivoted valve to open position, the pivoted valve havin-g ports for passage of liquid through it at its closed position; and a spring-seated check valve mounted on said pivoted valve for yieldingly closing said ports.

In testimony whereof, We have hereunto set our hand at Chicago, Illinois, this 17th day of October, 1922.

yLonis AEBY.

HENRY KocoUREK. 

